# N2805H: 1978 Schweizer SGS 2-33A - Status: Valid registration - Airframe: [Schweizer SGS 2-33A](https://openairdocs.org/model/schweizer-sgs-2-33a) (registry code 8051606, 2 seats) - Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000) - Data sheets: [TCDS G2EA](https://openairdocs.org/tcds/G2EA) (K & L Soaring LLC) (OpenAirDocs) - Serial number: 515 - Year built: 1978 - Type: Glider - Engine type: None - Airworthiness: Standard, glider - Airworthiness date: June 8, 1978 - Certificate issued: December 8, 2003 - Expires: January 31, 2029 - Mode S code: A2D10A - Registered owner: [Civil Air Patrol](https://openairdocs.org/faa-owner/CIVIL%20AIR%20PATROL) - Location: [Maxwell Afb, AL](https://openairdocs.org/faa-place/AL/Maxwell%20Afb) - Owner type: Corporation - Owner's area on the map: 32.3809° N, 86.3637° W: Placed by OpenAirDocs at the center of ZIP code 36112, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=2805H - Page: https://openairdocs.org/aircraft/N2805H From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs that may apply (OpenAirDocs): 4 in force ### Matched by airframe (Schweizer SGS 2-33A) - [AD 87-17-01](https://openairdocs.org/ad/87-17-01): Tow Release Installation · K & L Soaring SGS 1-23, SGS 1-23D, SGS 1-23F and 25 more. Effective Aug 19, 1988 - [AD 76-13-11 R1](https://openairdocs.org/ad/76-13-11-R1): Aft Fuselage Longerons · K & L Soaring SGS 2-33, SGS 2-33A, SGU 2-22C and 3 more. Effective May 25, 1988 - [AD 87-02-01](https://openairdocs.org/ad/87-02-01): Tow-Release Installation Inspection · K & L Soaring SGM 2-37, SGS 1-23, SGS 1-23D and 32 more. Effective Jan 21, 1987 - [AD 77-23-10](https://openairdocs.org/ad/77-23-10): Spar Web and Bolts · K & L Soaring SGS 2-33, SGS 2-33A and SGS 2-33AK. Effective Jun 21, 1978 ### Matched by engine (NONE) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ERA21LA330](https://openairdocs.org/ntsb/ERA21LA330), Aug 15, 2021: Schweizer SGS 2-33A (N2805H), North Springfield, VT, substantial damage. Probable cause: The check pilot's failure to account for the extended departure distance from the airport during a simulated tow rope break and recovery. ## FAA accident and incident reports (1) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20210815017299A](https://openairdocs.org/incident/20210815017299A), Aug 15, 2021: Schweizer SGS 2-33A (N2805H), North Springfie, VT, Substantial damage. Pilot statement - was practicing a simulated rope break on glider tow departing from rw 5. Was attempting to return and land on rw 23 but was not able to make… ## Service difficulty reports None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. ## STCs that may be installed (OpenAirDocs) (4) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the airframe (Schweizer SGS 2-33A) - [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts. Andrew D. Humphrey - [STC SG01164CH](https://openairdocs.org/stc/SG01164CH): Install Cooper superflite 102 fabric. Aviation Products Systems Inc - [STC SG1186GL](https://openairdocs.org/stc/SG1186GL): Surrendered and incorporated into STC SG01164CH. Cooper Aviation Supply Company, Inc - [STC SG305GL](https://openairdocs.org/stc/SG305GL): Install full swivel tail wheel, Cronig P/N SK-1, utilizing existing mounting points, bolts and hardware. Cronig Alvin ## Earlier aircraft with N2805H The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N2805H before. - [Cancelled 1949-04-22](https://openairdocs.org/deregistered/N2805H-1949-04-22): Engineering & Research ERCOUPE 415-C, S/N 3430. Owner: [Aviation Industries Inc](https://openairdocs.org/faa-owner/AVIATION%20INDUSTRIES%20INC), [Coeur D Alene, ID](https://openairdocs.org/faa-place/ID/Coeur%20D%20Alene) ## Related - Other Schweizer SGS 2-33A aircraft: https://openairdocs.org/model/schweizer-sgs-2-33a/aircraft.md - The NONE engine: https://openairdocs.org/engine/none.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.